Between the late '20s and early '30s were introduced the first celluloid models, the first ones were equipped with a [[button filler]] but later also a [[lever filler]] was used. Initially these were matched to the in hard rubber models and then they replaced them. Moreover the production was also differentiated, using the ''Elmo'' brand to mark the low end economic pens, while the ''Montegrappa'' brand was used for the top level pens. | Between the late '20s and early '30s were introduced the first celluloid models, the first ones were equipped with a [[button filler]] but later also a [[lever filler]] was used. Initially these were matched to the in hard rubber models and then they replaced them. Moreover the production was also differentiated, using the ''Elmo'' brand to mark the low end economic pens, while the ''Montegrappa'' brand was used for the top level pens. |